Displaying publications 61 - 80 of 434 in total

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  1. Orgasmic dysfunction among women at a primary care setting in Malaysia
    Sidi H, Midin M, Puteh SE, Abdullah N
    Asia Pac J Public Health, 2008;20(4):298-306.
    PMID: 19124324 DOI: 10.1177/1010539508322810
    AIM: The aim of this study was to investigate the prevalence of orgasmic dysfunction and the potential risk factors that may be associated with orgasmic dysfunction among women at a primary care setting in Malaysia.
    METHODS: A validated questionnaire for sexual function was used to assess orgasmic function. A total of 230 married women aged 18 to 70 years participated in this study. Their sociodemographic and marital profiles were compared between those who had orgasmic dysfunction and those who did not, and the risk factors were examined.
    RESULTS: The prevalence of orgasmic dysfunction in the primary care population was 51.9%. Women with orgasmic dysfunction were found to be significantly higher in the following groups: age >45 years, being non-Malay, having lower academic status, married longer, having more children, married to an older husband, and being at menopausal state.
    CONCLUSION: Women with infrequent sexual intercourse are less likely to be orgasmic (odds ratio = 0.29, 95% confidence interval = 0.11-0.74).
  2. The Female Sexual Function Index (FSFI): validation of the Malay version
    Sidi H, Abdullah N, Puteh SE, Midin M
    J Sex Med, 2007 Nov;4(6):1642-54.
    PMID: 17608666
    Female sexual dysfunction (FSD) is a prevalent sexual health problem that has been inadequately investigated in Malaysia, a nation with a conservative multiethnic society.
  3. The prevalence of sexual dysfunction and potential risk factors that may impair sexual function in Malaysian women
    Sidi H, Puteh SE, Abdullah N, Midin M
    J Sex Med, 2007 Mar;4(2):311-21.
    PMID: 17040486
    Female sexual dysfunction (FSD) is a prevalent sexual health problem that does not spare the women in Malaysia, a nation with a conservative multiethnic society.
  4. Fulltext Female sexual dysfunction among Malaysian women in a primary care setting: Does the frequency of sexual activity matter?
    Sidi H, Wan Puteh SE, Midin M, Abdullah N
    Medicine & Health, 2007;2(1):48-57.
    MyJurnal
    The aim of the study was to compare sexual functioning among Malaysian women in a primary care setting between those with a low and high frequency sexual intercourse. Across-sectional study on 230 married Malaysian women in a primary-care setting was conducted at the Bandar Tun Razak Clinic, Cheras. A validated Malay version of Female Sexual Function Index questionnaire (MVFSFI) was used to assess the sexual functioning profiles among women with low and high sexual activity.  The percentage of women who had sexual intercourse 3-4 times a week, 1-2 times a week and < 1-2 times a month were 13.4%, 44.3 % and 42.4 % respectively. Women with a low frequency of sexual intercourse (Low SI) tended to suffer from more sexual dysfunction, (χ²=28.98, p < 0.001) compared to those with a high frequency of sexual intercourse (High SI) group. Women who were less sexually active (having low frequency intercourse, ie. ≤ 1 – 2 times per week) were found to be less sexually aroused (χ²= 25.9, p< 0.001), less orgasmic (χ²=19.8, p< 0.001), less lubricated during sexual activity (χ²=11.1, p< 0.001), complain of sexual pain (χ²=4.3, p = 0.033) and feels less satisfied sexually (χ²=12.6, p< 0.001).The problem of female sexual dysfunction (FSD) in the Malaysian primary care population with low sexual activity needs to be addressed.
  5. Fulltext Association between CYP2E1 polymorphisms and colorectal cancer risk: a systematic review and meta-analysis
    Sharzehan MAK, Sito H, Abdullah N, Alexiou A, Papadakis M, Jamal R, et al.
    Sci Rep, 2022 Nov 23;12(1):20149.
    PMID: 36418904 DOI: 10.1038/s41598-022-24398-w
    CYP2E1 encodes an enzyme that participates in the activation of several carcinogenic substances. Thus, numerous studies have investigated the association between CYP2E1 polymorphisms and colorectal cancer (CRC) risk, but inconclusive results have been obtained. We performed a meta-analysis to precisely evaluate the relationship of CYP2E1 rs2031920, rs3813867, and rs6413432 polymorphisms with the susceptibility to CRC. Scopus, Web of Science and PubMed databases were searched to identify eligible studies, and the association between the polymorphisms and CRC risk was then quantitatively synthesized using different genetic models. Eighteen studies with 23,598 subjects were selected for inclusion into the analysis. Significant association between rs2031920 and an increased CRC risk was observed in homozygous (OR = 1.496, 95% CI 1.177-1.901, P = 0.001), recessive (OR = 1.467, 95% CI  1.160-1.857, P = 0.001) and allele (OR = 1.162, 95% CI  1.001-1.349, P = 0.048) models. Significant association was not found for rs3813867 and rs6413432 (P > 0.05). In conclusion, our results suggest that rs2031920, but not rs3813867 and rs6413432, is associated with the risk of CRC.
  6. Fulltext A comparison of commonly used anti-emetics for the prevention of emetic sequelae after a major gynaecological surgery
    Sharma S, Abdullah N
    Singapore Med J, 2000 Apr;41(4):147-50.
    PMID: 11063177
    Prospective, randomized, double-blind, placebo-controlled study involving one hundred ASA I-II patients undergoing major gynaecological surgery.
  7. Fulltext Physicochemical properties and consumer preference of imitation chicken nuggets produced from chickpea flour and textured vegetable protein
    Sharima-Abdullah, N., Hassan, C.Z., Arifin, N., Huda-Faujan, N.
    International Food Research Journal, 2018;25(3):1016-1025.
    MyJurnal
    In recent years, consumers’ demand increases for healthier foods with nutritional benefits and similar taste to the origin. Thus, this study was conducted to evaluate the physicochemical properties and proximate composition as well as consumer preference of imitation chicken nuggets or ICNs formulated with different percentage of chickpea flour and textured vegetable protein (TVP). A commercial brand of chicken nugget was chosen as control experiment to compare its characteristics with ICNs. Five formulation of ICNs were prepared with the percentage of chickpea flour to TVP of ICNs were: A (30:10), B (25:15), C (20:20), D (15:25), and E (10:30). Results found that all ICNs were found significantly lower (P
  8. Fulltext SnO2/Pt thin film laser ablated gas sensor array
    Shahrokh Abadi MH, Hamidon MN, Shaari AH, Abdullah N, Wagiran R
    Sensors (Basel), 2011;11(8):7724-35.
    PMID: 22164041 DOI: 10.3390/s110807724
    A gas sensor array was developed in a 10 × 10 mm(2) space using Screen Printing and Pulse Laser Ablation Deposition (PLAD) techniques. Heater, electrode, and an insulator interlayer were printed using the screen printing method on an alumina substrate, while tin oxide and platinum films, as sensing and catalyst layers, were deposited on the electrode at room temperature using the PLAD method, respectively. To ablate SnO(2) and Pt targets, depositions were achieved by using a 1,064 nm Nd-YAG laser, with a power of 0.7 J/s, at different deposition times of 2, 5 and 10 min, in an atmosphere containing 0.04 mbar (4 kPa) of O(2). A range of spectroscopic diffraction and real space imaging techniques, SEM, EDX, XRD, and AFM were used in order to characterize the surface morphology, structure, and composition of the films. Measurement on the array shows sensitivity to some solvent and wood smoke can be achieved with short response and recovery times.
  9. Fulltext Development and Relative Validity of a Semiquantitative Food Frequency Questionnaire to Estimate Dietary Intake among a Multi-Ethnic Population in the Malaysian Cohort Project
    Shahar S, Shahril MR, Abdullah N, Borhanuddin B, Kamaruddin MA, Yusuf NAM, et al.
    Nutrients, 2021 Apr 01;13(4).
    PMID: 33915922 DOI: 10.3390/nu13041163
    Measuring dietary intakes in a multi-ethnic and multicultural setting, such as Malaysia, remains a challenge due to its diversity. This study aims to develop and evaluate the relative validity of an interviewer-administered food frequency questionnaire (FFQ) in assessing the habitual dietary exposure of The Malaysian Cohort (TMC) participants. We developed a nutrient database (with 203 items) based on various food consumption tables, and 803 participants were involved in this study. The output of the FFQ was then validated against three-day 24-h dietary recalls (n = 64). We assessed the relative validity and its agreement using various methods, such as Spearman's correlation, weighed Kappa, intraclass correlation coefficient (ICC), and Bland-Altman analysis. Spearman's correlation coefficient ranged from 0.24 (vitamin C) to 0.46 (carbohydrate), and almost all nutrients had correlation coefficients above 0.3, except for vitamin C and sodium. Intraclass correlation coefficients ranged from -0.01 (calcium) to 0.59 (carbohydrates), and weighted Kappa exceeded 0.4 for 50% of nutrients. In short, TMC's FFQ appears to have good relative validity for the assessment of nutrient intake among its participants, as compared to the three-day 24-h dietary recalls. However, estimates for iron, vitamin A, and vitamin C should be interpreted with caution.
    Study name: The Malaysian Cohort (TMC) project
  10. Antioxidative and Inhibitory Effects of the Fruiting Body of Black Lingzhi Mushroom, Amauroderma rugosum (Agaricomycetes), on LDL Oxidation and HMG-CoA Reductase Activity
    Seng CK, Abdullah N, Aminudin N
    Int J Med Mushrooms, 2017;19(9):797-807.
    PMID: 29199554 DOI: 10.1615/IntJMedMushrooms.2017024374
    Amauroderma rugosum fruiting bodies possess excellent cardiovascular benefits, including antioxidative, antihyperlipidemic, antihypertensive, antiinflammatory, anti-platelet aggregation, and antithrombotic effects. In this article, we describe our investigations of the in vitro antioxidant activity and in vitro antiatherosclerotic potential through inhibitory effects on low-density lipoprotein (LDL), LDL peroxidation, and 3-hydroxy3-methylglutaryl-coenzyme A (HMG-CoA) reductase catalytic activity using various fruiting body extracts partitioned with an organic solvent. Among 5 extracts/fractions tested, the semipolar ethyl acetate (EA) fraction demonstrated good antioxidant capacity based on total phenolic content, 2,2-diphenyl-1-picrylhydrazyl free radical scavenging, ferrous ion-chelating ability, cupric ion-reducing antioxidant capacity, and lipid peroxidation assays. The EA fraction also showed the strongest inhibitory effect on Cu2+-induced LDL oxidation via thiobarbituric acid reactive substances formation and HMG-CoA reductase activity. Chemical analysis conjointly identified 10 phenolic compounds (4 benzoic acid derivatives, 3 flavonoids, 1 cinnamic acid, 1 hexahydroxydiphenic acid dilactone, and 1 xanthone derivative), some of which play pivotal roles in arresting the physiopathogenesis of atherosclerosis, thereby attenuating the risk of cardiovascular events occurring.
  11. Lipid-Modulating Effect of Black Lingzhi Medicinal Mushroom, Amauroderma rugosum (Agaricomycetes), on Oleate-Induced Human Hepatocellular Liver Carcinoma Cells
    Seng CK, Abdullah N, Aminudin N
    Int J Med Mushrooms, 2017;19(12):1101-1111.
    PMID: 29431071 DOI: 10.1615/IntJMedMushrooms.2017024589
    Dyslipidemia is the key precursor of atherosclerotic cardiovascular disease. The aim of this study was to investigate the lipid-modifying potential of organic solvent-partitioned extracts from fruiting bodies of Amauroderma rugosum in vitro using oleate-induced human hepatocellular liver carcinoma (HepG2) cells. Our results demonstrated that oleate-induced HepG2 cells treated with ethyl acetate (EA) extract greatly decreased intracellular and secreted total triglyceride (TG) and total cholesterol (TC) compared with other extracts. Further investigation of cellular expression of selected apolipoproteins also revealed that oleate-induced HepG2 cells treated with the EA extract best attenuated the apolipoprotein (Apo) profile by downregulating ApoB-100 and ApoE while upregulating ApoA1. Because both ApoB-100 and ApoE are key components of low-density lipoprotein (LDL) and very LDL (VLDL), which are recognized as "bad cholesterol," this result indicates that treatment with the EA extract inhibited LDL and VLDL production in oleate-induced HepG2 cells. On the other hand, increasing ApoA1 evidence shows antiatherogenic benefits to increasing ApoA1, the key component of high-density lipoprotein (HDL), particularly in relation to its role in promoting reverse cholesterol transport and preventing LDL oxidation; this indicates that the EA extract upregulated the production of HDL ("good cholesterol"). Hence, the EA extract is a good source of lipid-ameliorating agents in the management of dyslipidemia.
  12. Fulltext Case report: Unusual cause of difficulty in intubation and ventilation with asthmatic-like presentation of Endobronchial Tuberculosis
    Seevaunnamtum SP, Mohd Ariff Ghazali NA, Nazaruddin WM, Besari AM, Fariza NHN, Omar SC, et al.
    Respir Med Case Rep, 2017;22:292-294.
    PMID: 29159029 DOI: 10.1016/j.rmcr.2017.10.011
    Endobronchial Tuberculosis is hazardous in causing circumferential narrowing of tracheobronchial tree despite the eradication of tubercle bacilli in the initial insult from Pulmonary Tuberculosis. They may present as treatment resistant bronchial asthma and pose challenge to airway management in the acute setting. We present a 25 year-old lady who was newly diagnosed bronchial asthma with a past history of Pulmonary Tuberculosis that had completed treatment. She presented with sudden onset of difficulty breathing associated with noisy breathing for 3 days and hoarseness of voice for 6 months. Due to resistant bronchospasm, attempts were made to secure the airway which led to unanticipated difficult intubation and ventilation. Subsequent investigations confirmed the diagnosis of Endobronchial Tuberculosis and patient was managed successfully with anti TB medication, corticosteroids and multiple sessions of tracheal dilatation for tracheal stenosis. This case highlights the unusual cause of difficulty in intubation and ventilation due to Endobronchial Tuberculosis, which required medical and surgical intervention to improve the condition.
  13. Fulltext Edible mushrooms from malaysia; a literature review on their nutritional and medicinal properties
    Samsudin, N.I.P., Abdullah, N.
    International Food Research Journal, 2019;26(1):11-31.
    MyJurnal
    Mushrooms have been consumed by mankind for millennia. In Malaysia, there are many species of edible mushrooms which are either cultivated (Agaricus spp., Auricularia spp., Pleurotus spp.) or harvested in the wild (Ganoderma spp., Polyporus spp., Termitomyces spp.). With the advancement of technology, numerous discoveries have been made that elucidated the nutritional (high in fibres, proteins, vitamins; low in fats, cholesterols, sodium) and medicinal (anti-oxidative, anti-hypertensive, neuritogenesis) properties of edible mushrooms, all of which are highly beneficial for the maintenance of human health and well-being. This review thus compiles and documents the available literatures on edible mushrooms reported from Malaysia complete with scientific, English, and vernacular names for future references; provides a comprehensive and updated overview on the nutritional and medicinal properties edible mushrooms reported from Malaysia; and identifies the research gaps to promote further research and development on edible mushrooms reported from Malaysia. Overall, Malaysia is and remains a natural repository for wild and cultivated edible mushrooms. Deeper investigation on their nutritional and medicinal properties will certainly serve as an impetus for economic as well as scientific progress.
  14. Healthcare Utilization by Older Age Groups in Northern States of Peninsular Malaysia: The Role of Predisposing, Enabling and Need Factors
    Samsudin S, Abdullah N
    J Cross Cult Gerontol, 2017 Jun;32(2):223-237.
    PMID: 28493065 DOI: 10.1007/s10823-017-9318-4
    Determining factors that affect healthcare utilization by the elderly is vital for the health system to be more responsive in providing care to this vulnerable group. The main objective of this paper is to identify the effect of the predisposing, enabling, and need factors on doctor visits and in-patient care for the elderly residing in the northern region of Malaysia. A multistage cluster sampling was used in selecting the sample for the study. A total of 1414 respondents aged 60 and over were interviewed face-to-face using a structured questionnaire. A probit model was used in estimating the utilization equations. At a significance level of 0.05, except for age, all predisposing and enabling factors were not statistically significant in affecting the doctor visits. On the other hand, being a male, smoker, medical insurance holder or had not actively involved in social interaction within the reference period increases the likelihood of being in-patient. Health-related variables remain the most significant factors that determine healthcare utilization, including both doctor visits and in-patient stays, in the area of study, which suggests that government policies to improve population health may influence the level of healthcare use in the future.
  15. A preliminary survey on the occurrence of mycotoxigenic fungi and mycotoxins contaminating red rice at consumer level in Selangor, Malaysia
    Samsudin NI, Abdullah N
    Mycotoxin Res, 2013 May;29(2):89-96.
    PMID: 23242851 DOI: 10.1007/s12550-012-0154-7
    Red rice is a fermented product of Monascus spp. It is widely consumed by Malaysian Chinese who believe in its pharmacological properties. The traditional method of red rice preparation disregards safety regulation and renders red rice susceptible to fungal infestation and mycotoxin contamination. A preliminary study was undertaken aiming to determine the occurrence of mycotoxigenic fungi and mycotoxins contamination on red rice at consumer level in Selangor, Malaysia. Fifty red rice samples were obtained and subjected to fungal isolation, enumeration, and identification. Citrinin, aflatoxin, and ochratoxin-A were quantitated by ELISA based on the presence of predominant causal fungi. Fungal loads of 1.4 × 10(4) to 2.1 × 10(6) CFU/g exceeded Malaysian limits. Monascus spp. as starter fungi were present in 50 samples (100%), followed by Penicillium chrysogenum (62%), Aspergillus niger (54%), and Aspergillus flavus (44%). Citrinin was present in 100% samples (0.23-20.65 mg/kg), aflatoxin in 92% samples (0.61-77.33 μg/kg) and Ochratoxin-A in 100% samples (0.23-2.48 μg/kg); 100% citrinin and 76.09% aflatoxin exceeded Malaysian limits. The presence of mycotoxigenic fungi served as an indicator of mycotoxins contamination and might imply improper production, handling, transportation, and storage of red rice. Further confirmatory analysis (e.g., HPLC) is required to verify the mycotoxins level in red rice samples and to validate the safety status of red rice.
  16. Effects of condensed tannin fractions of different molecular weights from a Leucaena leucocephala hybrid on in vitro methane production and rumen fermentation
    Saminathan M, Sieo CC, Abdullah N, Wong CM, Ho YW
    J Sci Food Agric, 2015 Oct;95(13):2742-9.
    PMID: 25418980 DOI: 10.1002/jsfa.7016
    Molecular weights (MWs) and their chemical structures are the primary factors determining the influence of condensed tannins (CTs) on animal nutrition and methane (CH4 ) production in ruminants. In this study the MWs of five CT fractions from Leucaena leucocephala hybrid-Rendang (LLR) were determined and the CT fractions were investigated for their effects on CH4 production and rumen fermentation.
  17. Fulltext Polymerization degrees, molecular weights and protein-binding affinities of condensed tannin fractions from a Leucaena leucocephala hybrid
    Saminathan M, Tan HY, Sieo CC, Abdullah N, Wong CM, Abdulmalek E, et al.
    Molecules, 2014 Jun 12;19(6):7990-8010.
    PMID: 24927368 DOI: 10.3390/molecules19067990
    Condensed tannins (CTs) form insoluble complexes with proteins and are able to protect them from degradation, which could lead to rumen bypass proteins. Depending on their degrees of polymerization (DP) and molecular weights, CT fractions vary in their capability to bind proteins. In this study, purified condensed tannins (CTs) from a Leucaena leucocephala hybrid were fractionated into five different molecular weight fractions. The structures of the CT fractions were investigated using 13C-NMR. The DP of the CT fractions were determined using a modified vanillin assay and their molecular weights were determined using Q-TOF LC-MS. The protein-binding affinities of the respective CT fractions were determined using a protein precipitation assay. The DP of the five CT fractions (fractions F1-F5) measured by the vanillin assay in acetic acid ranged from 4.86 to 1.56. The 13C-NMR results showed that the CT fractions possessed monomer unit structural heterogeneity. The number-average molecular weights (Mn) of the different fractions were 1265.8, 1028.6, 652.2, 562.2, and 469.6 for fractions F1, F2, F3, F4, and F5, respectively. The b values representing the CT quantities needed to bind half of the maximum precipitable bovine serum albumin increased with decreasing molecular weight--from fraction F1 to fraction F5 with values of 0.216, 0.295, 0.359, 0.425, and 0.460, respectively. This indicated that higher molecular weight fractions of CTs from L. leucocephala have higher protein-binding affinities than those with lower molecular weights.
  18. Modulatory effects of condensed tannin fractions of different molecular weights from a Leucaena leucocephala hybrid on the bovine rumen bacterial community in vitro
    Saminathan M, Sieo CC, Gan HM, Ravi S, Venkatachalam K, Abdullah N, et al.
    J Sci Food Agric, 2016 Oct;96(13):4565-74.
    PMID: 26910767 DOI: 10.1002/jsfa.7674
    BACKGROUND: Condensed tannin (CT) fractions of different molecular weights (MWs) may affect rumen microbial metabolism by altering bacterial diversity. In this study the effects of unfractionated CTs (F0) and five CT fractions (F1-F5) of different MWs (F1, 1265.8 Da; F2, 1028.6 Da; F3, 652.2 Da; F4, 562.2 Da; F5, 469.6 Da) from Leucaena leucocephala hybrid-Rendang (LLR) on the structure and diversity of the rumen bacterial community were investigated in vitro.

    RESULTS: Real-time polymerase chain reaction assay showed that the total bacterial population was not significantly (P > 0.05) different among the dietary treatments. Inclusion of higher-MW CT fractions F1 and F2 significantly (P 

  19. Changes in rumen protozoal community by condensed tannin fractions of different molecular weights from a Leucaena leucocephala hybrid in vitro
    Saminathan M, Gan HM, Abdullah N, Wong CMVL, Ramiah SK, Tan HY, et al.
    J Appl Microbiol, 2017 Apr 23.
    PMID: 28434189 DOI: 10.1111/jam.13477
    AIMS: To evaluate the effects of condensed tannins (CTs) fractions of differing molecular weights (MWs) from a Leucaena leucocephala hybrid-Rendang on the rumen protozoal community in vitro.

    METHODS AND RESULTS: The effects of unfractionated CTs (F0) and CT fractions of different MWs (F1 > F2 > F3 > F4 > F5) on protozoal population and community were evaluated in vitro using rumen microbes and ground guinea grass as the substrate. Higher-MW CT fractions F1 and F2 significantly (P 

  20. Role of norepinephrine & angiotensin II in the neural control of renal sodium & water handling in spontaneously hypertensive rats
    Salman IM, Sattar MA, Ameer OZ, Abdullah NA, Yam MF, Salman HM, et al.
    Indian J Med Res, 2010 Jun;131:786-92.
    PMID: 20571167
    A wealth of information concerning the essential role of renal sympathetic nerve activity (RSNA) in the regulation of renal function and mean arterial blood pressure homeostasis has been established. However, many important parameters with which RSNA interacts are yet to be explicitly characterized. Therefore, the present study aimed to investigate the impact of acute renal denervation (ARD) on sodium and water excretory responses to intravenous (iv) infusions of either norepinephrine (NE) or angiotensin II (Ang II) in anaesthetized spontaneously hypertensive rats (SHR).
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